Remove deprecated prepublish script

package.json

@@ -22,8 +22,8 @@
     "lint:js:fix": "eslint --ignore-path .gitignore . --fix",
     "lint:sol": "solhint 'contracts/**/*.sol' && prettier -c 'contracts/**/*.sol'",
     "lint:sol:fix": "prettier --write \"contracts/**/*.sol\"",
-    "prepublish": "rimraf build contracts/build artifacts cache",
-    "prepare": "env COMPILE_MODE=production npm run compile",
+    "clean": "hardhat clean && rimraf build contracts/build",
+    "prepare": "npm run clean && env COMPILE_MODE=production npm run compile",
     "prepack": "scripts/prepack.sh",
     "release": "scripts/release/release.sh",
     "version": "scripts/release/version.sh",

scripts/prepare-contracts-package.sh

@@ -5,7 +5,7 @@ cd "$(git rev-parse --show-toplevel)"
 
 # avoids re-compilation during publishing of both packages
 if [[ ! -v ALREADY_COMPILED ]]; then
-  npm run prepublish
+  npm run clean
   npm run prepare
   npm run prepack
 fi